
/* blue.scss */
$blue: #212121;
body{
    color: $blue;
    box-sizing: border-box;
}
div{
    width: 200px;
    height: 200px;
    margin-top: 50px;
    background: url("../../assets/images/2.png");
}
.a{                 /* 冗余css */
    color: black;     
}

.b{                 /* 冗余css */
    width: 50px;
    height: 50px;
    background: yellow;
}
